Commit 77e4bfbc authored by Andreas Mohr's avatar Andreas Mohr Committed by Linus Torvalds
Browse files

[PATCH] Small schedule() optimization 



small schedule() microoptimization.

Signed-off-by: default avatarAndreas Mohr <andi@lisas.de>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 013d3868

kernel/sched.c

+5 −7
Original line number Diff line number Diff line
@@ -2879,14 +2879,12 @@ asmlinkage void __sched schedule(void) 
	 * schedule() atomically, we ignore that path for now.

	 * Otherwise, whine if we are scheduling when we should not be.

	 */

	if (likely(!current->exit_state)) {

		if (unlikely(in_atomic())) {

	if (unlikely(in_atomic() && !current->exit_state)) {

		printk(KERN_ERR "BUG: scheduling while atomic: "

			"%s/0x%08x/%d\n",

			current->comm, preempt_count(), current->pid);

		dump_stack();

	}

	}

	profile_hit(SCHED_PROFILING, __builtin_return_address(0));



need_resched: